from tkinter import*
win=Tk()
win.title('Ит марафон')
N=int(input())
x=int(input())
y=int(input())
win.geometry('500x500')
canvas1=Canvas(bg='white',width=500,height=500)
canvas1.pack(anchor=CENTER,expand=1)
coord=[0,0,10,0,10,10,20,10,20,30,10,30,10,20,0,20]
if N==0 and 0<=x<=500 and 0<=y<=500:
    pass
else:
    if N>0 and 0<=(0*N+x)<=500 and 0<=(0*N+y)<=500 and 0<=(20*N+x)<=500 and 0<=(30*N+y)<=500:
        pass
    else:
        if N<0 and 0<=(0*N+x)<=500 and 0<=(0*N+y)<=500 and 0<=(20*N+x)<=500 and 0<=(30*N+y)<=500:
            pass
        else:
            print('NO')
            exit()
canvas1.create_polygon(coord[0]*N+x,coord[1]*N+y,
                 coord[2]*N+x,coord[3]*N+y,
                 coord[4]*N+x,coord[5]*N+y,
                 coord[6]*N+x,coord[7]*N+y,
                 coord[8]*N+x,coord[9]*N+y,
                 coord[10]*N+x,coord[11]*N+y,
                 coord[12]*N+x,coord[13]*N+y,
                 coord[14]*N+x,coord[15]*N+y)
win.mainloop()

